The Chicago Blackhawks have signed veteran defenseman Alec Martinez to a one-year, $4 million contract, according to Frank Seravalli of Daily Faceoff. Martinez, 36, recorded 17 points (four goals, 13 assists) in 55 games this past season for the Vegas Golden Knights. He missed some time with a lower-body injury but averaged 19:02 of ice time when healthy. Martinez is...